动态握手练习用于检测心肌缺血,使用快速Strain-ENCoded心血管磁共振
Andreas Ochs1, Michael Nippes2, Janek Salatzki1
1Department of Cardiology, University of Heidelberg, Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany.
概括
动态手握运动 (DHE) - 快速菌株编码成像 (fSENC) 为检测阻塞性冠状动脉疾病 (CAD) 提供了一种可靠的,无需针的方法. 这种超快的心血管磁共振 (CMR) 技术减少了检查时间,并扩大了压力测试的适用性.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 生理学 生理学 生理学
背景情况:
- 动态手握运动 (DHE) 是一种潜在的生理,无针应激器,用于心血管磁共振 (CMR).
- DHE-fast 菌株编码成像 (fSENC) 提供了一个节省成本的,超快速的替代药理应激CMR,避免副作用.
研究的目的:
- 评估DHE-fSENC的诊断准确性,以识别与缺血相关的墙壁运动异常.
- 评估DHE-fSENC在诊断阻塞性冠状动脉疾病 (CAD) 的有效性.
主要方法:
- 预期招募疑似阻塞性CAD患者进行CMR压力测试.
- 对药理学压力CMR和侵入性冠状动脉血管学 (ICA) 进行评估的诊断准确性.
- 协议包括双手DHE,然后在药理压力之前获得fsenc.
主要成果:
- 在260名患者中,DHE-fSENC显示出79%的灵敏度和87%的特异性与药理应激CMR相比.
- 在105名ICA患者中,对于阻塞性CAD检测,灵敏度为82%,特异性为89%.
- 与腺 perfusion 和 dobutamine-cine 协议相比,DHE-fSENC 显著减少了检查时间.
结论:
- DHE-fSENC可提供可靠和快速检测阻塞性CAD.
- 这种无针CMR应力测试方法提高了诊断能力和适用性.
相关概念视频
01:26Exercise Stress Test
178
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
178
01:29Electrocardiogram
2.2K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.2K
01:24Magnetic Resonance Imaging
5.0K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
5.0K